Sergay N. Agoff, MD

Medicare activity in 2024

Official CMS public-use data for Sergay N. Agoff, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.

Most frequent services

1. Pathology examination of tissue using a microscope, intermediate complexity (88305)974 services
2. Special stained specimen slides to examine tissue, each additional procedure (88341)306 services
3. Cell examination of specimen, selective cellular enhancement technique (88112)253 services
4. Evaluation of fine needle aspirate with interpretation and report (88173)222 services
5. Special stained specimen slides to examine tissue, initial procedure (88342)121 services

Chronic conditions among these patients

Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).

• High cholesterol63%
• High blood pressure62%
• Arthritis35%
• Cancer (breast, colorectal, lung, prostate, endometrial or leukemia/lymphoma)29%
• Diabetes21%
• Ischemic heart disease21%

Hospitals where Sergay N. Agoff works

Medicare's Facility Affiliation Data lists Sergay N. Agoff at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.

• Jefferson HealthcarePort Townsend, WA · Critical Access Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 501323
• Virginia Mason Medical CenterSeattle, WA · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 500005

Practice locations

Addresses where Sergay N. Agoff is enrolled with Medicare (CMS data updated October 2, 2026).

• 1100 9th AveSeattle, WA 98101 (206) 223‑6600

Group practices

Medicare enrollment lists Sergay N. Agoff as a member of this group (CMS data updated October 2, 2026).

• Virginia Mason Medical Center867 clinicians in the group

Specialties

• Pathologyprimary

Find other Pathology doctors in Washington →

Other pathologists in Seattle

Clinicians with the same Medicare primary specialty in Seattle, WA — not a recommendation.

• Maryam Asif, MD
• Geoffrey S. Baird, MD
• David Wu, MD
• Shiva Jabbari, MD
• Paul D. Simonson, MD
• Dick G. Hwang, MD
• Yongjun Liu, MD
• Yevgen Chornenkyy, MD

All pathologists in Seattle →

Other clinicians in Virginia Mason Medical Center

Medicare enrollment lists these clinicians in the same group practice — not a recommendation.

• Kate O. Bedrin, MD
• Kevin D. Kim, MD
• Drew E. Baldwin, MD
• Justin Ellis, MD
• Amber B. Post, MD
• Jennifer A. Fijor, NP

Clinician information

Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.

Sources

1. Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
2. Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
3. National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
4. Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
5. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
6. Medicare Care Compare — official Medicare tool to look up clinicians